1) I don't think it looks that much like Kanna... not as much as Miya's. HQ pics change that point
2) They don't look all that interested in each other
At least Miya's little love affair "scandal" was so full of cute lovey-doveyness
3) That guy is hella cute!
4) Kanna being more than friends with a male... hmmm... doesn't seem to fit